[CONFIGURATION-481] Variable interpolation across files broken in 1.7 & 1.8

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7, 1.8
• Fix Version/s: 1.9
• Component/s: Interpolation

Environment

Any OS, but have verified with Windows 7 and AIX 6.1, running Java 1.6.0.

• Assignee: Oliver Heger
• Reporter: Jim Prantzalos
• Created: 26/Feb/12 20:27
• Updated: 22/Aug/12 18:07
• Resolved: 29/Feb/12 21:15

Description

With Commons Configuration 1.6, I was able to declare a variable in a properties file, and then reference it in a XML file using the ${myvar} syntax.

For example:

global.properties:

myvar=abc

test.xml:

<products>
  <product name="abc">
    <desc>${myvar}-product</desc>
  </product>
</products>

config.xml:

<properties fileName="global.properties"/>
<xml fileName="test.xml" config-name="test">
  <expressionEngine config-class="org.apache.commons.configuration.tree.xpath.XPathExpressionEngine"/>
</xml>

When I try to retrieve the value, like so:

combinedConfig.getConfiguration("test").configurationAt("products/product[@name='abc']", true).getString("desc")

I get "${myvar}-product" instead of "abc-product".

This was working in Commons Configuration 1.6, but seems to be broken in 1.7 and 1.8.